update lastaflute, use RequestManager and minor fixes

pom.xml

src/main/java/org/codelibs/fess/api/es/EsApiManager.java

...ain/java/org/codelibs/fess/app/service/SearchService.java

src/main/java/org/codelibs/fess/app/web/RootAction.java

...delibs/fess/app/web/admin/general/AdminGeneralAction.java

src/main/java/org/codelibs/fess/app/web/base/SearchForm.java

...org/codelibs/fess/app/web/base/login/FessLoginAssist.java

src/main/java/org/codelibs/fess/app/web/help/HelpAction.java

...n/java/org/codelibs/fess/app/web/search/SearchAction.java

src/main/java/org/codelibs/fess/exec/Crawler.java

src/main/java/org/codelibs/fess/helper/SystemHelper.java

...va/org/codelibs/fess/helper/impl/RoleQueryHelperImpl.java

src/main/java/org/codelibs/fess/util/ComponentUtil.java